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orm n e ELISHA K. ROOT, OF COLLINSV LLLE, .CONECIICUT; .ASSIGN.OR JJOCOLLINS G0.

MWHINEB FOR DRES NQ Specification of Letters Patent No. 5,731, dtedAugust 22, 1848.

Upon a strong stationary bad of cast iron,

standing horizontally, I place a vibrating, or sliding, bed, which ismade to move back and forth between suitable guide pieces bearingagainst its edges. Motion is given.

to this sliding bed by means of a Crank connected with it by a shacklebar. Upon this sliding bed the ax to be dressed is to be laid, and it isto be held in place while operated upon by check pins bearing againstits edges, and a set screw bearing against its edges or sides or by anyanalogous means. On each side of the sliding bed there rises from thestationary bed, one, or any other preferred number of strong pins, orbolts, which are to sustain the pressure of the back of the knife usedfor dressing or shaving the axes; this knife is made somewhat in theform of a drawing knife, and is governed by hand. When the machine is inoperation a lever is made to bear on the upper side of the knife with adegree of force which may be regulated by a treadle or by hand.

In the accompanying drawing A, A, is the stationary bed, at the centerof which there are two shafts B, B which may be made to revolve by meansof a band on the whirls C, driven by any adequate motive power.

D, is a crank and E, a shackle bar proceeding from each shaft B to thesliding bed F, that represent two modifications of the same machine andeach of which moves back and forth between the cheeks F F. Upon thissliding bed the ax G, is laid, and it may be kept in place by means ofpins or by a block a, and a set screw b, bearing against it. Toward thethin end, or edge, of the ax, two short pins a a may rise from thesliding bed to support it inthat part, and prevent its rocking upon itsconvex face, (the place of them is shown on the right hand machine) orif preferred, a hollow or excavation may be made in the slid- 1ng bed,to admit the convex face of the ax.

H, H, is the knife drawn in red lines in Figure 1, and shown separately,and on a larger scale, in Fig. 2.

The blue line 0 0 is the cutting part. This may be a bar, or cutter, ofsteel, independent of the machine, so as to admit ofit being redilyremoved and sharpened.

One, or more 'stout standards or pins f, f, f, rise vertically from thestationary frame, or bed, for the purpose of supporting the back of theknife which is held against them, and which may be passed between them,either straight, or obliquely, and managed by its handle e, or in anyother convenient way, as, for example, by allowing one end of the knifeto be held by a hook, &c., and having a handle at the other.

To enable the operator to force the knife against the face of the ax,and to cut a proper shaving therefrom, a lever I, is made to bear uponit with any required degree of force, which force may be regulated bythe hand or foot in the following manner. J, J, is a rectangular frameof iron, into the slot J, of which the lever I, is fastened; this frameis attached to the standards f, f. The end of the lever I, maybeattached to a frame cohstituting a treadle upon which the foot of theoperator may be made to bear as may be desired, and not represented orit can be pressed down by hand, or the screws 7L, 7L, may be substitutedfor the lever in some cases. By this arrangement as the sliding frame isdrawn back the knife may be made to shave, or dress the face of the aXin a very-perfect manner, the hand of the operator adapting it to thewhole surface successively, and leaving it in a state in which it willrarely require any other dressing excepting that which is given to it bythe polisher after it has been hardened and tempered; if necessary,however, the cutting edge may be touched upon the grindstone.

Having thus fully described the nature of mymachine for dressing, orshaving, the faces of axes, in lieu of the ordinary process of grinding,what I claim therein as new, and desire tose'cure by Letters Patent, isThe manner in which I have combined and arranged the respective partsthereof as herein described, consisting of a knife, or

cutter, held and gnided by the hand of the operator and sustaned againstsuitable pins,

forward, under the knife, and the whole structure and operation beingsubstantiafly or bearngs, and borne down upon the face the same withthat hereinmade known.

of the ax by the action of the screw lever, or pressing bar or otheranalogous device, in combination with the s1iding bed on which the ELXis made to traverse backward and ELISHA K. ROOT.

Witnesses:

SAMUEL N. WOODBRIDGE, ADDISON B. FLINT.

